ToneLab Generator

Brown noise for sleep. Binaural beats for focus. A pure tone for tuning, a sweep for hearing checks, pink noise for ASMR — ToneLab Generator covers the whole 20 Hz to 20 kHz audio range across nine precision modes.

WHAT YOU CAN DO

• Sleep better with brown, pink, or white noise — the same sounds rain machines and white noise apps play, generated cleanly on your phone with no compression artifacts.

• Reduce tinnitus discomfort with a tunable masking tone. Dial in the frequency that matches your tinnitus and use sound therapy techniques recommended by audiologists.

• Focus deeper with binaural beats. Set a carrier frequency and a beat frequency in the alpha, theta, or delta range for meditation and concentration.

• Test your hearing with frequency sweeps from 250 Hz to 8 kHz — a simple at-home check before you book the audiologist.

• Tune your instrument. A 440 Hz, every chromatic note, with cents-accurate display.

• Test speakers and subwoofers across the full range. Find buzz, distortion, and frequency response issues.

• Generate isochronic tones for relaxation and modulated signals (AM, FM, PWM) for sound design.

NINE MODES

• Tone — single-frequency sine, square, triangle, or sawtooth wave at any frequency from 20 Hz to 20 kHz.

• Dual Tone — two independent tones mixed with control over the mix ratio.

• Binaural — different frequencies in left and right ears (headphones required) for binaural beats.

• Sweep — frequency glide between any two points, one-way or oscillating.

• Noise — white, pink, brown, blue, violet, grey, or velvet noise.

• DTMF — the touch-tone dial pad frequencies.

• Isochronic — gated pulses at brainwave-target rates for meditation.

• Modulation — AM and FM modulation with adjustable LFO rate and depth.

• PWM — pulse-width-modulated signals for sound design.

POWER USER FEATURES

• Save your settings as named presets. Twelve built-in presets ship with the app covering sleep, tinnitus, focus, tuning, hearing checks, speaker testing, studio reference, vintage modulation, and ASMR.

• Export any tone, noise, or signal as a 44.1 kHz / 16-bit WAV file. Share directly to other apps.

• Sleep timer with fade-out so the audio winds down gracefully when you fall asleep. Up to 8 hours for overnight use.

• Real-time waveform analyzer with FFT spectrum view.

• Harmonics control — add overtones to any waveform.

• Background audio that survives the screen turning off, with a persistent playback notification you can stop from the lock screen.

• Headphone-unplug auto-pause and phone-call audio focus handling.

• Home-screen long-press shortcuts for Brown Noise, Binaural Focus, and A 440 Hz.

PRIVACY

ToneLab does not record audio. The microphone is never accessed. We collect anonymous app analytics to improve the app and serve ads, and that's it. Full privacy policy in-app and at flxcode.com.